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I've had both the original Stacker and the stacker 830 many years ago, the latter is the one your link shows but with less show and more go (quad fan bracket, perforated steel mesh). I did love them for their shear sturdiness and flexibility, while the 830 was much nicer to look at and lighter. The Cosmos I haven't owned, but fiddled with a few times. One of my last delvings into non-SFF PC'ing.